:root {
  --footer-neon-blue: #0ff0fc;
  --footer-dark-blue: #0a192f;
  --footer-light-blue: #64ffda;
  --footer-text: #ccd6f6;
  --footer-bg-gradient: linear-gradient(135deg, #0a192f, #172a45);
  --footer-shadow: 0 -5px 25px rgba(10, 25, 47, 0.9);
  --footer-border: 1px solid rgba(15, 240, 252, 0.2);
  --footer-bottom-bg: rgba(10, 25, 47, 0.95);
  --footer-bottom-border: 1px solid rgba(15, 240, 252, 0.1);
}

/* ESTRUCTURA PRINCIPAL */
.footer-neon {
  background: var(--footer-bg-gradient);
  color: white;
  padding: 40px 0 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin-top: auto;
  width: 100%;
  box-shadow: var(--footer-shadow);
  border-top: var(--footer-border);
  position: relative;
}

.footer-neon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--footer-neon-blue), transparent);
  animation: footer-glow 3s linear infinite;
}

@keyframes footer-glow {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* CONTENEDOR Y SECCIONES */
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  padding: 0 20px 30px;
}

.footer-section {
  padding: 20px;
  position: relative;
}

.footer-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20px;
  width: 50px;
  height: 2px;
  background-color: var(--footer-neon-blue);
  transition: width 0.4s ease;
}

.footer-section:hover::after {
  width: calc(100% - 40px);
}

.footer-title {
  color: var(--footer-neon-blue);
  margin-bottom: 20px;
  font-size: 1.3rem;
  text-shadow: 0 0 8px rgba(15, 240, 252, 0.6);
  display: inline-block;
  position: relative;
}

/* TEXTO */
.neon-text {
  text-shadow: 0 0 5px var(--footer-neon-blue), 0 0 10px rgba(15, 240, 252, 0.3);
}

.neon-green {
  text-shadow: 0 0 5px #25D366, 0 0 10px #25D366, 0 0 15px #25D366;
}

.footer-button:hover .neon-green {
  text-shadow: 0 0 8px #25D366, 0 0 15px #25D366, 0 0 20px #25D366;
}

.footer-text {
  color: var(--footer-text);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}

.footer-text:hover {
  color: var(--footer-light-blue);
  text-shadow: 0 0 5px rgba(100, 149, 255, 0.5);
}

/* ICONOS */
.footer-icon {
  color: var(--footer-neon-blue);
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

/* BOTONES */
.footer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  margin: 5px 0;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  width: 100%;
  box-sizing: border-box;
}

.footer-button i {
  margin-right: 10px;
  font-size: 1.1em;
}

.whatsapp {
  background-color: #25D366;
  color: white;
}

.email {
  background-color: #DB4437;
  color: white;
}

.footer-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(15, 240, 252, 0.4);
}

/* SECCIÓN INFERIOR */
.footer-bottom {
  background-color: var(--footer-bottom-bg);
  padding: 15px 0;
  text-align: center;
  border-top: var(--footer-bottom-border);
}

.footer-copyright {
  color: var(--footer-text);
  font-size: 0.9rem;
  margin: 0;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    padding: 0 15px 20px;
  }

  .footer-section {
    text-align: center;
    padding: 15px;
  }

  .footer-section::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-button {
    max-width: 250px;
    margin: 5px auto;
  }
}